Precipitation of calcium carbonate particles in nonionic and ionic microemulsionsPrecipitation is usually considered as a very fast process where solid particles are generated as a result of an irreversible chemical reaction in the liquid phase. A high supersaturation level is achievable ...
Two simple methods of introducing the polycation in the crystallogenesis of calcium carbonate are proposed: preformed NPECs or in-situ mixing of complementary polyelectrolytes, with a very large range of ratios between complementary polyioins. For this purpose three polyanions – polyacrylic acid ...
Magnesium carbonate (MgCO3) has calcite structure, while the strontium carbonate and the barium carbonate (SrCO3and BaCO3) have an aragonite structure, reflecting their larger ionic radii. Properties of Calcium Carbonate (CaCO3) Calcium Carbonate is known as fluffy powder. ...
To meet the human demand for crop productivity, there are several challenges that researchers are involved in the photosynthetic efficiency of plants may be one of them. Nanotechnology can improve agricultural productivity by affecting the photosynthetic
Amorphous calcium carbonate is an important precursor for biomineralization in marine organisms. Key outstanding problems include understanding the structure of amorphous calcium carbonate and rationalizing its metastability as an amorphous phase. Here w
Strikingly, the Ca/P/CO3 ionic combination is reported in several organisms at different maturation stages, suggesting a common tract in biomineralization. Intracellular polyphosphate complexes were identified in calcium carbonate-based unicellular algae66. In coccolithophore algae, Ca2+ is translated ...
Among the most common calcium minerals are the two crystalline forms of calcium carbonate-calcite and aragonite (CaCO 3 , limestone is primarily calcite), calcium sulfate (the dehydrated form, CaSO4 , is anhydrite; the hydrated form, CaSO4.2H2O, is gypsum), calcium magnesium carbonate (CaMg(CO...
S2). This demonstrates that the molecular component of our ACC structure has a similar degree of ordering to a molecule in a typical ionic glass while the Columbic part of our ACC structure is significantly more ordered than that of a typical ionic glass. Another appropriate comparison is with...
Inspired by the processability of polymeric materials that can be manufactured by crosslinking monomers or oligomers15, here we demonstrate the construction of continuously structured inorganic materials by crosslinking ionic oligomers. Using calcium carbonate as a model, we obtain a large quantity of ...
Of this, some 1.18mmol/l are ionised and a further 0.16mmol/l are present as inorganic complexes with hydrogen carbonate, citrate and other chelating agents. The remainder, bound to protein, forms a non-diffusible store in the blood. The bulk of this, 0.92mmol/l, is bound to serum ...